Question

In the picture above, a 9 kg bar 4.1 m long is set up to rotate
about its center (the dark circle). Each arrow represents a force
that is being applied to the bar. FA = 24 N, FB = 44 N, FC = 28 N,
& FD = 28 N. FB & FC are applied halfway between the center
and the end while FA & FD are applied right at the ends. Using
the center as the pivot point, answer the following questions.
PHY110 Torque 2 Picture

a.) Determine the magnitude of the net torque on the bar.
(Remember, magnitudes are entered as positive.)
________m?N